Hand stamping device



E. G. CLARK. HAND STAMPING DEVICE. 'APPLICATION FILED JULY 30,1919.

Patented Apr. 20, 1920.

UNITED sTATEs PATENT oEEIcE.

ERNEST G'. CLARK, OF DE KALB, ILLINOIS, ASSIGNOR TO THE Q R S MUSIC COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

Application filed July 30, 1919.

To all whom it may concern.'

Be it known that I, EnNEs' G. CLARK, a citizen of the United States, residing at De Kalb, in the county of Dekalb and State of Illinois, have invented certain new and useful Improvements in Hand Stamping Devices, of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof.

The purpose of this invention is to pre1 vide an improved device for applying markings by a printing stamp adapted for rapid operation and accurate placing of the mark ings and uniform distribution of the ink on the stamp and consequent uniformity throughout the area of the mark so applied. It consists in the elements and features of construction shown and described, as indicated in the claims.

In the drawings:

Figure 1 is a plan view of a device embodying this invention.

Fig. 2 isa side elevation of the same.

Fig. 3 is an inverted plan view of the stamp holder.

Fig. 4 is a detail section at the line, 4 4, on Fig. 1.

In the structure shown in the drawings, 1 is a bed in which is contained at 2 an inkpad and at 3 a platen for the sheet to be marked. 4, 4, are fulcrum supports secured to the opposite side edges of the bed midway in its length and projecting upward past the upper surface of the bed to afford journal bearings for a rock shaft side, which with its two arms, 6, 6, constitutes a radius member for carrying the stamp holder, 7, which is pivoted between the ends of the arms, 6, 6, on said radius member. The stamp holder may be adapted in any desired manner for carrying on its under face the stamping or printing means, such as rubber stamps, assembled types, electrotype blocks or stereotype plates or the like. vIt has dove-tail grooves, 7b, 7 b, adapted to receive the mounting blocks, 8 and 9, of stamping or printing devices which may be understood to be either electrotype, stereotype or rubber printing plates mounted upon a backing block, as seen at 10 in Fig. 4. At 11 there are shown metal retainers of the general character of turn buttons or latches held in place on the holder, 7, by a single screw, 12, on which the turn button or latch may turn Specification of Letters Patent.

Patented Apr. 20, 1920.

serial No. 314,392.

- for engaging or releasing the stamping or printing device from the holder. AAt the right hand side of the stamp holder, 7, there is secured upon its back or upper surface a check bar, 13, whose ends extend beyond the side edges of the stamp holder and overhang the radius arms, 6, 6, when the radius member'is brought over to the left to carry the stamp to the platen, 3; and through these overhanging ends, 13a, of said bar, 13, there are set adjustable stop screws, 14, 14, which collide with stop plates or wear plates, 15, 15, mounted on the radius arms at the sides thereof which are upward when the radius member is swung over as described, onto the platen, but which are downward when it stands at the position shown in full lines in Fig. 1, with the stamp resting on the ink pad. The stop screws, 14, are to be adjusted so that they will collide with the radius arms, '6, 6, when the printing face is in aV plane distant from the axis of the rock shaft as far as the plane of the platen (or of the sheet lodged thereon for printing) is dis tant from said axis, so that the printing face will come to the platen squarely,that is, so as t0 make contact therewith over the entire printing surface, and thereby produce an evenly inked impression upon the sheet lodged 0n the platen for receiving the imprint. 17, 17 are screw eyes set into the edges of the printing blocks, 8 and 9, for convenience of withdrawing them from their seats in the holder. 18, 18, are turn-buttons for securing the printing block. 20 is a handle for engagement by the operator to swing the stamp holder back and forth between the ink pad and the platen.

I claim 1. A device for the purpose indicated, comprising in combination with a radius member pivoted for swinging through an arc for carrying a printing stamp from an inking pad to a printing position, a printing radius Ymember is pivoted for swinging to carry the stamp holder either to the pad or :radius arms near its opposite ends, and fulcrum supports between which said rook shaft extends and in which its ends areV journaled. l Y Y 4C. In a structure deiined in claim l, the stamp holder having a barsecured on its upper orback side-Whose ends extend beyond the sides of the holder to overhang the radius member arms, said bar lcarrying in its said ends stops on the holder for colliding with the radius member stops.

5. In a structure delined in claim l, the radius member being a v'rock shaft having twov arms, the holder being pivoted to and between said arms, and having a bar on its upper side Whose `ends project beyond the holder to overhang said rook shaft arms respectively, the holder stops being mounted in said overhangingends.

G. In a structure defined in claim l, the radius member being a rock shaft having twoV arms, the holder being pivoted to and between said arms and having a bar on its upper side Whose ends project beyond the holder to overhang said rock shaft arms reof July, 1919.

Y ERNEST CLARK.

speCtiVeIy, the holder stop consisting of Y 

